Arizona's dark skies are a haven for astronomers and photographers. Some communities are fighting to keep them that way.

When driving around town, some may have noticed that many of the city’s street lights have a different look to them.

“The rare part is seeing six of the planets at the same time in the sky, and seven if you look down and include Earth,” Rivera said. While we’ll see the big planets for more than a ...

From our viewpoint on Earth, they don’t appear perfectly aligned but rather follow a curved path across the sky. The following is an illustration of what the night sky could roughly look like without ...